Method for adjusting virtual sound track of television according to position of watcher and television

A viewer and channel technology, applied to color TV parts, TV system parts, TV, etc., can solve the problem of manual setting of parameters

Active Publication Date: 2014-02-26
HAIER BEIJING IC DESIGN
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Problems solved by technology

[0003] The purpose of the present invention is to solve the traditional "emperor position" and the problem that parameters need to be set manually

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  • Method for adjusting virtual sound track of television according to position of watcher and television
  • Method for adjusting virtual sound track of television according to position of watcher and television

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Embodiment Construction

[0026] The method of the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] The traditional stereo sound effect requires that the position relationship between the two speakers and the listener is an equilateral triangle or an isosceles triangle, that is, there is an emperor position, which is the best listening point. After adopting the virtual surround sound technology, it is no longer necessary to accurately consider the placement of the speakers. The stereo surround sound effect can be achieved by virtualizing the left and right channels at a fixed position, but there is still the limitation of the emperor's position. In this embodiment, the position information and head width information of the viewer are identified in real time by the sensor, HRTF is determined, input to the virtual surround sound calculation module, and the virtual channel data is calculated so that the listener alw...

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Abstract

The invention relates to a method for adjusting the optimal virtual sound track of a loudspeaker of a television according to the position of a watcher and the television. The method comprises the steps that the displacement and the width of the head of the watcher are sensed in real time; sensed information is processed according to the face recognition technology, and when the face is recognized, azimuth information and information of the width of the head of the watcher are obtained through detection; the nearest actual watcher and the position of the watcher are found according to the azimuth information and information of the width of the head of the watcher, and a corresponding Head Related Transfer Function (HRTF) is obtained through search; virtual sound track data are calculated according to initial sound track data and the HRTF, and the virtual sound track data are played through the loudspeaker of the television. According to the method for adjusting the optimal virtual sound track of the loudspeaker of the television according to the position of the watcher and the television, the problem of manual setting of a sweet spot and parameters is solved, the virtual sound track corresponding to the optimal audition area can be adjusted in a self-adaptation mode, the parameters can be adjusted automatically, and the improvement in the effect of television watching by a user is facilitated.

Description

technical field [0001] The invention relates to the technical field of television virtual sound channels, in particular to a method for adjusting a television virtual sound channel according to a viewer's position and a television. Background technique [0002] The traditional stereo system relies on placing multiple speakers in the space to simulate the actual sound field. The placement of the speakers has higher requirements, and it has the "emperor position" that is the best listening area. From the speaker, it lacks 3D stereoscopic and spatial sense, and the cost is relatively high. The development of virtual surround sound technology processes stereo signals according to the sound transfer function HRTF of the human auditory system to reproduce 3D sound effects. The most representative 3D stereo technology, SRS, can obtain the effect of surround sound by using two speakers. With its relatively low cost, it is widely used in TVs, audio players and other products. Howev...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/60
Inventor 刘巍
Owner HAIER BEIJING IC DESIGN
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